CentOS7 安装Oracle 12cR2

1. 安装系统依赖包

# yum -y install binutils compat-libcap1 compat-libstdc++-33 compat-libstdc++-33*.i686 elfutils-libelf-devel gcc gcc-c++ glibc*.i686 glibc glibc-devel glibc-devel*.i686 ksh libgcc*.i686 libgcc libstdc++ libstdc++*.i686 libstdc++-devel libstdc++-devel*.i686 libaio libaio*.i686 libaio-devel libaio-devel*.i686 make sysstat unixODBC unixODBC*.i686 unixODBC-devel unixODBC-devel*.i686 libXp

2. 新增用户和用户组

# groupadd oinstall  
# groupadd dba  
# groupadd oper
# groupadd backupdba
# groupadd dgdba
# groupadd kmdba
# groupadd racdba
# useradd -g oinstall -G dba,oper,backupdba,dgdba,kmdba, racdba -m oracle  
# echo "oracle" | passwd --stdin oracle

3. 创建软件安装目录

mkdir -p /orcl/app/oracle/product/12.2.0/db_1
chown -R oracle:oinstall /orcl/app
chmod -R 775 /orcl/app

4. 解除系统对oracle用户的资源限制（vim /etc/security/limits.conf）

oracle soft nproc 2047  
oracle hard nproc 16384  
oracle soft nofile 1024  
oracle hard nofile 65536  
oracle soft stack 10240

5. 优化内核参数

fs.aio-max-nr = 1048576  
fs.file-max = 6815744  
kernel.shmall = 2097152  
kernel.shmmax = 4091021312    
kernel.shmmni = 4096  
kernel.sem = 250 32000 100 128  
net.ipv4.ip_local_port_range = 9000 65500  
net.core.rmem_default = 262144  
net.core.rmem_max = 4194304  
net.core.wmem_default = 262144  
net.core.wmem_max = 1048576

vim /etc/pam.d/login

session required pam_limits.so

vim /etc/profile

if [ $USER = "oracle" ]; then  
if [ $SHELL = "/bin/ksh" ]; then  
ulimit -p 16384  
ulimit -n 65536a  
else  
ulimit -u 16384 -n 65536  
fi  
fi

配置 oracle 用户环境变量vim ~oracle/.bash_profile

ORACLE_BASE=/orcl/app/oracle  
ORACLE_HOME=$ORACLE_BASE/product/12.1.0/db_1  
ORACLE_SID=orcl  
export ORACLE_BASE ORACLE_HOME ORACLE_SID  
PATH=$ORACLE_HOME/bin:$PATH  
export PATH  

# su  oracle  
$ cd /orcl/app/oracle  
$ unzip linuxx64_12201_database.zip 
$ export LANG="en_US"  
$ export DISPLAY=：0.0
$ xhost +
$ cd /orcl/app/oracle/database  
$ ./runInstaller

接下来图形化界面安装，安装过程中会提示，需要手动执行以下两个自带的脚本。

# sh /orcl/app/oraInventory/orainstRoot.sh
# sh /orcl/app/oracle/product/12.2.0.1/dbhome_1/root.sh

---

解决Oracle SQL/Plus命令行写sql语句删除错误信息及上下翻历史命令异常问题

1、安装 readline：http://tiswww.case.edu/php/chet/readline/rltop.html#Documentation

# tar -xf readline-8.0.tar.gz 
# cd readline-8.0/
# make && make install

2、安装 rlwrap：https://github.com/hanslub42/rlwrap/releases

安装依赖

# yum install libtermcap-devel
# tar -xf rlwrap-0.43.tar.gz
# cd rlwrap-0.43/
# ./configure
# make && make install
# find / -name libreadline.so.8
/usr/local/lib/libreadline.so.8
# echo "/usr/local/lib/" >> /etc/ld.so.conf
# ldconfig

验证进入SQL

$ rlwrap sqlplus / as sysdba

SQL*Plus: Release 12.2.0.1.0 Production on Fri Apr 12 11:37:56 2019

Copyright (c) 1982, 2016, Oracle.  All rights reserved.


Connected to:
Oracle Database 12c Enterprise Edition Release 12.2.0.1.0 - 64bit Production

SQL> 

可选择配置命令别名
$ vi .bash_profile
加上：
alias sqlplus="rlwrap sqlplus"
alias rman="rlwrap rman"